Original Xiaomi Mijia Bluetooth 5.1 Stereo Noise Reduction Karaoke Microphone1. Bluetooth version: 5. 1 2. Charging interface: Type C 3. Effective distance: about 10 meters 4. Battery capacity: 3. 6V 2500mah 5. Large caliber professional pickups, full and undistorted vocals 6. One key to eliminate the original song, easy to use 7. Sound card level DSP chip noise reduction, no noise 8. Size: 96x96x226mm Specification: Package Weight One Package Weight 0. 89kgs 1. 96lb One Package Size 27cm * 13cm * 13cm 10. 63inch * 5. 12inch *